[manigandham]

Google Trends takes advantage of the Google knowledge graph for deeper understanding of entities and companies. This is showing "Pinterest the social network" not just "Pinterest the search term". You can toggle with the menu at the top.

[foldingmoney]

>This is showing "Pinterest the social network" not just "Pinterest the search term"

I believe this is just a broader result set that includes searches for anything that Google deems to be related to 'Pinterest the social network'.

Google doesn't have access to internal Pinterest metrics.

[zrobotics]

Google also knows how many Android users search/download the app. I don't use pinterest, but if they use Google analytics or ads then Google also has a fair amount of data on usage.

Google is very much a panopticon, I doubt any other single entity has as much knowledge of the internet as a whole. Now whether this reflects in Google analytics I don't know, as I've never really used their analytics for anything serious.